MAPK Pathway under Chronic Copper Excess in Green Macroalgae (Chlorophyta): Involvement in the Regulation of Detoxification Mechanisms
dc.contributor.author | Rodríguez-Rojas, F | en |
dc.contributor.author | Celis-Plá, PSM | en |
dc.contributor.author | Méndez, L | en |
dc.contributor.author | Moenne, F | en |
dc.contributor.author | Muñoz, PT | en |
dc.contributor.author | Lobos, MG | en |
dc.contributor.author | Díaz, P | en |
dc.contributor.author | Sánchez-Lizaso, JL | en |
dc.contributor.author | Brown, MT | en |
dc.contributor.author | Moenne, A | en |
dc.contributor.author | Sáez, CA | en |
dc.date.accessioned | 2019-09-27T12:25:08Z | |
dc.date.available | 2019-09-27T12:25:08Z | |
dc.date.issued | 2019-09-13 | en |
dc.identifier.issn | 1422-0067 | en |
dc.identifier.uri | http://hdl.handle.net/10026.1/14941 | |
dc.description.abstract |
<jats:p>Following the physiological complementary/parallel Celis-Plá et al., by inhibiting extracellular signal regulated kinases (ERK), c-Jun N-terminal kinases (JNK), and cytokinin specific binding protein (p38), we assessed the role of the mitogen-activated protein kinases (MAPK) pathway in detoxification responses mediated by chronic copper (10 µM) in U. compressa. Parameters were taken at 6, 24, and 48 h, and 6 days (d). H2O2 and lipid peroxidation under copper and inhibition of ERK, JNK, or p38 alone increased but recovered by the sixth day. By blocking two or more MAPKs under copper, H2O2 and lipid peroxidation decayed even below controls. Inhibition of more than one MAPK (at 6 d) caused a decrease in total glutathione (reduced glutathione (GSH) + oxidised glutathione (GSSG)) and ascorbate (reduced ascorbate (ASC) + dehydroascorbate (DHA)), although in the latter it did not occur when the whole MAPK was blocked. Catalase (CAT), superoxide dismutase (SOD), thioredoxin (TRX) ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR), and glutathione synthase (GS), were downregulated when blocking more than one MAPK pathway. When one MAPK pathway was blocked under copper, a recovery and even enhancement of detoxification mechanisms was observed, likely due to crosstalk within the MAPKs and/or other signalling processes. In contrast, when more than one MAPK pathway were blocked under copper, impairment of detoxification defences occurred, demonstrating that MAPKs were key signalling mechanisms for detoxification in macroalgae.</jats:p> | en |
dc.format.extent | 4546 - 4546 | en |
dc.language | en | en |
dc.language.iso | en | en |
dc.publisher | MDPI | en |
dc.title | MAPK Pathway under Chronic Copper Excess in Green Macroalgae (Chlorophyta): Involvement in the Regulation of Detoxification Mechanisms | en |
dc.type | Journal Article | |
plymouth.issue | 18 | en |
plymouth.volume | 20 | en |
plymouth.journal | International Journal of Molecular Sciences | en |
dc.identifier.doi | 10.3390/ijms20184546 | en |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
dcterms.dateAccepted | 2019-09-01 | en |
dc.rights.embargodate | 2019-11-26 | en |
dc.identifier.eissn | 1422-0067 | en |
dc.rights.embargoperiod | Not known | en |
rioxxterms.version | VoR | en |
rioxxterms.versionofrecord | 10.3390/ijms20184546 | en |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | en |
rioxxterms.licenseref.startdate | 2019-09-13 | en |
rioxxterms.type | Journal Article/Review | en |